Centrifugal separator



Dec. sl 1925. 1,564,632

G. R. SCHUELER CENTRIFUGAL SEPARATOR File'd sept, 27, 192:5 4 Sheets-Sheet 1 FIG. 1.

` G. R. SCHULER CENTRIFUGAL sEPARAToR Filed Sept. 27, 1925 Dec. s, 1925. 1,564,632

G. R. SCHUELER CENTRIFUGAL. SEPARATOR Filed Sept. 27. 1923 4 Sheets-Sheet 4 Patented Dee. 8, 1925.

UNTE STATES ruiten GEORG-E RICHARD SCHUELER, F KINGSTON-UPON-HULL, ENGLAND.

CENTRIFUGAL SEPARATOR.

Application filed September 27, 1923.

To ZZ 107mm t may concern Be it known that I, Grouse Rrcrriinn Sorruinxnu, a citizen otI the United States ot America, residing at the city and county of Kingstou-upon-llull, England, have invented certain new and useful Improvements in Centritugal Separators, of which the tollowing is a specification.

ylfhis invention relates to centrifugal separators.

hly invention has tor its object, improvements in centrifugal apparat-us ttor separating liquids from solids, whereby the. iteed oit the material from which the liquid is to be selbarated or eiltractedand the discharge ot the extracted liquid and the residuum or solid matter, take place during the time thy apparatus is running and eti'ecting separation, with the result that it is not necessary to stop the apparatus either to charge it or to remove the separated liquid and solids; 'tceding ot the material to be treat ed. seniration or extraction of the liquid -torni the solid matter, and discharging ot the sepa `ated liquid and solids proceeding as a continuous operation so long as the apparatus is running.

lu carrying out my invention7V I employ a vertical cylindrical metal casing, the top aud bottom ot which are preferably reu'iovablc.

ltotatable in this casing is a perpendicular shatt on which is lteyed or otherwise secured a strong circular plate of a suitable diameter, and rotatably mounted on such perpendicular shatt is a sleeve provided with a lixed circular device disposed a suitable distance above the circular plate on the perpendicular shatt and adapted to cover vthe saine, the outer part ored'ge ot this circular device being ot' arch or lil-:e shape to form au arch or l'ilre shaped annular chamber in the top ot which are a. number ot holes, the periphery or edge ot such circular device extending beyond the periphery of the circular plate and being provided with a depending iiange or rim between the inside oit which and the periphery of the circular plate on' 'the perpendicular shaft is a suitable annular space.

The `top er upper surface o't the device in the sleeve .is provided witlva-'n annular r ee into which the material from which ,t e liquidy ,is to be separated, is ted holes Serial No. 665,080.

being formed in such circular device through which the material fed into the circular space passes into the space between the said device and the top ot the circular plate and on to the latter.

A ring, preferably cone-shaped, may be, and is by preference, secured to the bottom of the depending iange or rim of the circular device mounted on the rotatable sleeve, the said ring enclosing al portion of the underside of the disc or circular plate on the perpendicular shaft, and serving` to deliver the solid matter from which the liquid has been separated into an annular space in `the bottom ot the casing, through which annular space it escapes through an outlet or outlets provided for the purpose, a suitably driven sweeper, or a plurality of sweepers travelling around in 'such annular space7 carrying such solid matter to the said outlet oroutlets.

The circular plate and the circular device which encloses the top and theperifphery of the same, are driven by any suitable means in the same direction but one a little taster than the other.

The casing is provided with an internal Iannular 'trough which receives the liquid to be delivered on to the inside of they wall i of the casing, down which wall it flows into the said annular trough and escapes through an outlet' or outlets therefrom.

The periphery of the plate on the perpendicular shaft may be', and preferably is, provided with a plurality of devices each provided with an inclined' or like rib` to push the solid matter down the annular space be tween such periphery and the annular depending` flange or rim et the circular device which covers such plate, and the circula-r plate has attached to its underside a plurality of inclined blades or a ring` provided with a plurality ofinclined blades for scrapingl the inside tace oit the conical ring to prevent lodgnaent of solid matter thereon.

Having thus stated the object and described the nature of my invention, I will now proceed to describe my said invention in greater detail, and in so doin-g will refer to the accompanying four sheets et explanatory dra-Wing'son whichl Fig. l is a sectional elevation et a centrifugal separator in accord- CTI ance with my invention, and Fig. 2 is a plan view of the apparatus. Fig. 3 is a plan view of the circular device carried by the sleeve rotatable on the perpendicular shaft. Fig'. et is a plan view of the circular plate carried by the perpendicular shaft. Fig'. is a broken sectional view of the circular plate carried 4by the perpendicular Shaft, the circular device carried by the sleeve rotatable on the perpendicular shaft, and a portion of one ot the devices titted in the periphery of the circular' plate and of the ring` provided with a blade or blades secured to the underside of such plate, and Fig'. 6 is a plan view ot the lett hand portion of Fig. Fig. 7 is an elevation ot the ring; provided with inclined blades, detached from the circular plate. Fig` 8 is an edge view of one of the devices provided with the inclined rib or blade with which the circular plate is provided, and D and Fig. l() are an end view and a plan view respectively of the same.

Figs. 5 and G are drawn to a. larger scale than the other views.

Referring to the drawings. A indicates the cylindrical casing, A1 bein-5),' the cover plate, and A2 the bottom plate both shown Secured to the said casing' by bolts whereby they are removable.

B is a perpendicular shaft the bottoni end ot which is seated and rotatable in a socket bearing t in the bottom iig olf the casing A, the said shaft passingup through the cover A1 of the said casing, and C is a circular distributing,V plate keyed or otherwise suit ably secured on such shaft, c being a nut screwed on a threaded portion oi? the shalt. to assist in supporting such plate,

D is a sleeve rotatable on the perpendicun lar shaft B, and E is a circular separating device keyed or otherwise suitably secured on such sleeve, and prevented troni work ingdown the same by the conical bottom end oi: the sleeve and the boss o en the shalty B, e being an annular trough or space 'termed in the top oit the said device E and into which the material from which the liquid is to be extracted, is ted, and el are passages formed in the device within such space, through which the material passes to the space F between the said device and the circular plate C and so on to such circular plate.

The outer portion of the device E is oi arch or like shape as indicated at c2 to provide a correspondingly shaped annular chamber in which the separation ot the liquid from the solid matter takes place, a large number et small holes c3 being- Vterm-cd in the crown of such chamber, through which holes the separated liquid escapes. rlhe periphery of the arch or like shaped outer pari` e' the circular device extends downwardly .to enclose the periphery of the circular plate C mount-ed on the perpendicular shaft B, a suitable annular space in tervening,l between the two through which the solid matter from which the liquid has been extracted or separated, escapes.

G is a ring preferably cone-shapcd as shown, secured to the bottom ot the depending periphery et the circular device ll ou to the inclined inside face ot which the solid matter which passes between the periphcry oi the circular plate C and the inside of the periphery ot the circular device l falls, and down which it slides and i'alls to the bottom ot' the casing' A.

The bottoni edge ot' the conical ring; (i extends inwardly of the separating holes c3 so that the said edge is nearer the axis' of rotation of the separating device than the said holes. The material in the separate ing device E is stratitied by centrifugal action. The heavier and more solid particles ot the material are forced outwardlyv against the imperliorate periphery ot the separating device E, and the lichter and more liquid particles are pcrn'iitted to escape through the separating` holes, which are arranged inwardly oi the imperiorate periphery et the separating device l.

il. indicates a ring provided with blades z, L, i1 preferably oli the kind shown, sce especially Fig. 7 of the drawings, the said blades termina Scrapers the incrined bot loins 7i oi which push down any oi the solid mattei' which may lodg'c ou the inside ot the conical ring G and so prevent solid matter accumulating on such ring.

J, J, J indicate three devices with which the circular plate C is shown provided, tln` said devices being each in the form of a segmental plate provided at its outer edge with an upwardly and downwardly projecting flange or rim y', having an oistandincr inclined thickened portion which `torms an inclined blade jl as shown more clearly in Figs. 8 and 9. These plates are secured to the top of the circular plate C, the periphery of which is recessed at each place where a plate is fitted, the inside tace oi the downwai'dly projecting' flange or rim of a plate bedding' ae'ainst the bottom or inner part oi the recess in the circular plate, in which the plate is iitted, see more especially Fig'. 5 oi the drawings.

rlhe number ot devices l be greater or less than three.

K is a flat ring secured to the circular plate C conveniently by the screws L which secure the segmental plates J, J, J to such plate, which segmental plates support the said ring' above the circular plate at a distance therefrom corresponding` with the thickness of such plates, the said ring l( being of sutiiciently large diameter to extend beyond the holes c3 in the crown ot the annular chamber of the circular device E, and

en'iployed ma;Y

IUS

providing with the outer part ofthe circular plate C, a space in which the material fed to the circular device E passes to the outer part ot the annular chamber, such ring' K preventing' the material :trom rising in the said annular chamber until it reaches the edge ot the said ring'.

L is an annular trough Aformed by means oit the annular upwardly projecting` ring` or member Ll termed on t or it may be secured to) the inside ot' the wall ol the casing', into which trough the liquid extracted or separated troni the solid matter and which is delivered on to the inside or the casing, flows, Z beinel an outlet in the wall ot' the casing` and in coninnunication with the trough L, through which outlet the liquid escapes .trom the trough. A pipe (not shown) is preferably connected to the wall o't the casing' at the point where the outlet Z is situated, to convey the liquid to a store tank.

M is an annular channel or space at the bottom of the casing7 formed bv an annular ringslike portion M1 on the inside ot the bottom plate of the casing', into which space the solid matter trom which the liquid has been extracted or separated falls. m being); a spout-like outlet from such annular channel or space, and which is conveniently termed integral with the bottom plate A2 of the casing: A.

N is a bevel wheel rotatable on an npn wa 1dly projecting cent-ral boss-*like portion O of the circular chamber A3 formed inteoral with the bottom plate A of the casing, n, al being` bent members secured to the back of such bevel Wheel, n?, n being sweepers secured to the outer ends ofY the bent members and which travel around in the annular channel or space M -termed by the ringnlike projection M1 on the inside ol the bottom plate ot'A the casing; and sweep the material in such channel to and through the outlet m therefrom.

ll is a horizontal shaft rotatable in a bearing); y) fitted to one side of the chamber A combined with the bottom plate il? ot' the casina' A, and in a sleeve p1 secured to such bearing 7), 721 beine a bevel wheel keyed on the inner end of such shaft and which gears with the bevel wheel N which carriesythe bent men'ibers n, n1 provided with the sweepers n2, ffl-3 and causes the rotation of the bevel wheel N and through it, the circular travel oi the sweepers n?, n3, and P2 is a pulley keyed on the outer end of the shaft P, the said pulley being` connected by a belt with a pulley on a line of shafting or the like.

R is a circular hoppersshaped device supported by rods r carried by the cover A1 of the casing A, the said hopper projecting` into the annular feed trough or space c in the top oit the circular device E, and Rel is a tube through which .the vmaterial is fed toy such hopper.` the said tube being,` connected to the bin or the like containing` the material to be treated.

S is a pinion or like toothed wheel keyed on the perpendicular shaft B, S1 is a similar whe-el but ot' a little larger diameter, keyed on t-he sleeve l) rotatable on the shaft B.

',l" a perpendicular short shatt, the bot.- toin end ot which is seated and rotatable in a socket bearing al on the top of the cover )U- o'l" the casing' A, which shaft passes up through a bearing;l conveniently termed in a removable plate ci? torniinggthe cover ot a cylindrical casing or chamber et' termed on the top ot the cover A1 ot the casing` A, T1 beine' a spur or like toothed wheel keyed on the shaft T and which gears with the pinion or like toothed wheel S on the shaft B, and Tgvis a slightly smaller spur or like toothed wheel keyed on the said shaft T and which ,ejears with the pinion wheel S1, keyed en the said sleeve D, the difference in the diameter ot the two pinion wheels S, S1 on the shaft B and on the sleeve D respectively, and the difference in the diameter of the spur wheels T1, T2 on `the shaft T. causing the shaft B provided with the circular plate C to be driven at a slightly higher speed than the sleeve D provided with the circular device E.

ll is a pulley keyed on the top ol the short sliait 'll and V, V1 are two jockey pulleys rotatable on a short shaiit 111 carried by an upriglfrt r2 mounted on a bracketlll carried by the side ot' the casino` c, X be ing a driving` belt connecting' the pulley ll o-n the short shaft T with a pulley on a line of sln'ittinleor other dii-ving` sourcen which belt passes under the jockey pulleys V, Vl and. d ives the shalt T which in turn drives the perpendicular shai't B and the circular plate C thereon and the sleeve ll and the circular device l thereon through the medium ort the spur wheels T1 and 'lf2 and the pinion wheels S and S1, the shat't B and the sleeve D being` both driven in the same direction but the one at a little higher speed than the other.

The cylinder ai" on the cover plate All ot the casing A and the cover plate c2 ot such cylinder a3, constitute a housing` tor the pinion wheels S, Sl and the spur wheels Th T2. The c ver plate 2 ot the cylinder a3 is conveniently provided with a hollow boss (at provided with a bush u?" to form a bea-ring' tor the top end ot the perpendicular shaft B which is preferably sufficiently long to project through such cover plate a2.

The material trom which the liquid is to be extracted or separated is ted through the tube R1 into the hopper R, down which it passes into the annual trough or space c in the top ot the circular dev'ce E on the sleeve D rotatable on the perpeniilicular shaft B from which trough or space it passes through the holes or passages c1 and italls on to the circular plate C keye-d on the perpendicular shaft, and is caused by the speed at which the circular plate C revolves to pass under the guide ring K and is guided by the said plate C and ring K to a point beyond the points at which the separated liquid and the solid matter :troni which the liquid has been separated, are discharged from the circular device E, through the separating holes rl`he solid mattei' is separated from the liquid matter in the separating device, and the liquid escapes through the holes e* therein and is deposited on the walls ot the casing A down which it iiows into the annular trough L and escapes through the outlet Z.

The solid mattei from which the fluid has separated, is engaged by the blades of the devices .I fitted in the recesses in the periphery ot the circular plate C keyed on the shaft B, and is forced by them down the annular space between the outer wall ot the circular device IG and the periphery oit the circular plate C, whence it falls on to the conical ring G secured to the bottom of the periphery of the circular device E down which it is pushed and caused to descend by the blades /t ot the ring` I-I attached to the underside of the circular plate C. This solid matter falls into the annular channel M in the bottom plate A2 and is swept by the sweepers n?, n on the bent arms n, nl carried by the bevel wheel N, to the outlet M.

Any liquid which, not having separated from the material in the annular chamber of the device E but may separate therefrom as the material passes down the ring G, may pass back into the space between the plate C and the guide ring K and into the material therein through holes c provided in the plate C for the purpose.

The whole of the operative parts of the apparatus are entirely enclosed, thereby enabling the apparatus to deal with materials or mixtures containing liquid of a volatile nat-ure, such as, for example, oil, fat and the like containing material, to which benzine or other volatile solvent has been added to eiliect or assist in eiilecting the extraction of the oil or the like 'from the material.

lVhat I claim and desire to secure by Letters Patent is 1. In a centrifugal separator, a rotary distributing plate a rotary' separating device arranged over the distributing plate and provided at its inner portion with a receiving chamber for the material which delivers the material onto the inner portion of the top of the distributing plate, said separating device having also an annular chainber arranged at its outer portion between its receiving chamber and its periphery and provided at its top with separating holes for liquid and having its bottom formed by the said distributing plate, said separating device having also an imperforate and downwardly projecting peripheral portion spaced apart `from the periphery ot the dis tributing plate and forming with it an annular discharge outlet for solid matter, and separate driving devices operating to rotate the said distributing' plate and separating device independently ot each other.

2. A centrifugal separator as set Vt'orth in claim l, the said receiving chamber for the material being annular and provided with a series ot' downwardly and outwardly inclined passages ior delivering the material onto the distributing plate.

In a centrifugal separator, a rotary distributing plate, a rotary separating device having an imperio ate peripheral portion and an annular separating chamber provided with separating holes for liquid at its top, said holes being arranged inwardly ot its imperiforate peripheral portion and over the distributing plate, a conical ring secured to the said separating Ydevice and projecting inwardly of its separating holes and below the distributing plate, and means tor preventing solid matter from accumulating on the said conical ring.

l. A centrifugal separator as set forth in claim 3, the said rotary distributing plate being provided with holes extending through it and operating to connect the liquid space inside the conical ring with the liquid space of the annular separating chamber.

5. A centrifugal separator as set forth in claim 3, the said means l'or preventing solid matter 'from accumulating on the conical ring, comprising scrapers secured to the said distributing plate.

G. A centrifugal separator as set forth in claim l, the said distributing plate being provided with passages having covered tops in the upper side of its outer part which conduct the material from its inner portion to the peripheral part of its annular chamber past its said separating holes.

7. In a centrifugal separator, a rotary distributing plate, an annular guide plate, segmental plates secured between the top of the distributing plate and the annular guide plate, thereby forming a series ot' passages which conduct the material from the central portion of the delivery plate to its periphery, and a rotary separating device having an imperforate peripheral portion and an annular separating` chamber arranged over the said guide plate and provided with sepa- 1ating holes for liquid.

S. In a centrifugal separator, a rotary distributing plate, a rotary separating device having an imperforate peripheral portion and an annular separating chamber provided with separating holes, a conical ring secured to the said separating device and projecting lll() below the distributing plate, and a casing for the said pars provided with an annular receiving chamber for solid matter below the said conical plate, said casing having 5 also a ring which projects inwardly and upwardly from its side Wall above the said receiving` chamber, said ring being arranged around the said conical ring and forming with the Wall of the casing an annular receiving chamber for liquid.

In testimony whereof I have aiiixed my signature.

GEORGE RICHARD SCHUELER. 

